Tokyo - Getting Around, Bicycle Row

Now on up a more self-propelled mode of transportation.  When I taught science in high school I was amazed to learn that the bicycle is the most efficient machine developed by man.  At the one-third horsepower that can be provided by a person's muscles, these amazing machines can propel their drivers at speeds that would be impossible with a machine fueled by fossil or alternative fuels at the same power level.  As a bonus, it's great fun!

We were walking around a park in downtown Tokyo and saw these guys, naturally parked in a very orderly manner and SPOTLESSLY CLEAN, every one.  However, the aspect that caught my attention most was the fact that not even half of them were locked!  Such a carefree society...at least to the relatively uneducated outside observer.